Polishing-drum.



R. D. 'HAMSH` POLISHING DRUM.

APPLICATION HLED JAN.15, 1913.

` J'NVENTOR.

RQCHA'RD E@ HA N @e5 H AWOMVEY, 221% RICHARD D. IN'ISH, or COLUMBUS, OHIO:

sometime-DRUM.

notitie.

I Specification of Letters Patciit'. Pttntml Ang. ai?

Application l'ed January 15, 1913. Serial No. 742,241 i To alt whom-15 may conce-m.'

Be it known that I, RICHARD D. HANIsH, a citizen ot the United States, residing at (ivolumbus, in the county of Franklin and State ot Ohio. haveinvented certain new and useful lnprovements in Polishing- Drnms, ot which the following is a specilication. Y i

The present invention relates to improvements in polishing drums, and isv particularly applicable for use in cleaning and polishing plane surfaces.

l have found the polishing drum of this invention especially effective in cleaning andy renovating moving picture Elms, where a machine is used in which the tilm is supported on and passed over rolls, and 4while the film is being transferred-.from one roll to another, a plurality of these drums, properly supported, are used to clcanand renovate the surface of the film. A machine of this character is illustrated and described in my eopending application for patent Serial No. 709,544, filed July 15, 1912.

The invention consists in certain novel Jfeatures ot' construction and combinations and arrangements of parts whereby the polishing cloth oir-fabric, in the form'of a strip, is wrapped around the drul'n and its ends secured, to insure a smooth' polishing surface for the drum.l

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention, and a modification thereof, showingy the best modes l have so far devised for the practical application of the principles of the invention.

Figure 1 is a' longitudinal vertical section of the drum per se. Fig. 2 is an end view of the drum, the polishing c loth and cushion being omitted, but ratchets of the winding v apparatusillustrated. Fig. 3 is a transverse sectional view of a drum complete. Fig. 4 is an` enlarged detail showing a catch Jfor one ot the winding devices. Fig. 5 is a vertical, central sectional view of Fig. 4, .looking toward the left. Fig. (i showsone ot' the winding devices in side elevation, parts being omitted. Fig. 7 is an enlarged detail view et one of the winding ratchets shown in Fig. 2. Fig. S illustrates a latch to he used in connection with the -pawl and ratchet, and Fig. 9 illust-rates' a modified form ot the invention.

In the preferred embodiment of my'inof the drum.

i vention I employ' the drum 1 which is oft suitable material, metal being illustrated, and formed with a continuous circumferen-- tial surface or perimeter 2 which is bro-ken only by the longitudinal` slot 3 which ex,- tcnds fromnear one end of Ithe drum to the otherf Y The `drum is furnished with a pair of bearing' sleeves 4, 4, and spokes 5, between some of which are formed the webs 6, 6, to support necessary'attachment's.

The drum is wrapped'or venveloped' by a polishing cloth 7, in theform of a strip of suitable length and proper width7 and be tween the cloth and the perimeteriof the drum a cushioning member 8 is interposedl The ends of the cushion, which may be ot felt or other suitable material, stop at the 'edges of the slot in the drum, and the edges or walls of the slot are provided with shields 01y guard strips 9, 9.\ These shields present a smooth surface over which the polishing cloth may be passed when adjusting the cloth to permanent or stationary position on the drum, and while 1 have illustrated the shields'or wear plates as separate and independentelements, it will be under-- stood that the edges or walls of the'slot may themselves be `fashioned to suitable form toy take the place of the removable plates.

The ends of the cloth a're secured to winding devices that are supported in the webs These devices are identical in form, and it is thought t-he description of .one device will sutlice for both. The ends.`

of the cloth are first secured about the bars 10 of the winding fork and these barsA are integral with a hearing boss 11, a disk 12, anda nut portion 13, as seen most clearly in Fig. 6. The boss is adapted to turnin one of the perforat'ed webs of the drum, and the fork extends longitudinally through the drunn The ends of the bars 10 are located in a perforated thimble 13', fitted in the web at iead which comprises a tho end 'of the drum' opposite the fork head,.-

and provided with an annular flange lt'contacting with the inner wall of the drum.

One of the bars 10 is longer than the other and projects beyond the t-himble and also beyond the outer tace of the drum web. A. perforated cap plate 15, larger in d1- aineter than the body of the thimble, and of the opening in the wall or web of the drum, is secured, as by screws 16 to 'the body of the thimhle. This plate holds the thimble'f l .1. O .n ..11 ...u 10 .1 .1 r.. .1. .h1 xl. ..1 1.@ ...n 1.. ...1. .1 .1 1n 11 .1. u... ...1l O .1.. Q. H.1. ....1 ...L ..1 1.1. M ...1.... u 1 n Hf... .1.1... 1.. ..1 .1. ...1. a... .1.. o.. 1.1. N5 11|. 11.11 .-1. L 1. .1 .1..( .1 1 1.1 .1.. :1 E 1 1 .1 1.. H .1 l 01 1. .1... ....1. f.. N .1.. 1.r .l 1. ...1. ..1 .1. .1 ...-11 .1. .1. 1. .(..1. .h 1. .1. 1. u.. ...u .1. .D ..1 .1. H .1 f. .11 ...1 .11. .1. ...1 1. H. .1 .l @1U 1N 1. .H 1 1 1H.. .1. 1 .1.. .1, 1 ..11 1. 1. u... 11. 1l 1 .H L 0.,.. .11 1.1.1 .1 1.1 .i111 .0 .11. 1. U .111. 1 .1. 11111 14 ..1 1... 1, 1.. ....1 .N .1. a .,1, .1.211. .M1111 S. n. u .11 .1. .1 H 1 .1. 1. .H .,.1 S .1, .1 ..1 .-1 11..... u. .-..11 .1 1 1 .1 m Q. .l 1 1 .1 1.1 ...131.11 1. 1 .1 X..1..\1.( .n ./.\\1\ ..1 .1.0.1-1..1 u 1 ,..UN.11.Q 1.1.11 1N ...1.1 1 -l l .1. n. .1.1. .1. 1 1 .1.111. I O .n 4... v. l ....11 L W1@ k l\ l x 1. r. H .11. .1 .1 11.. 1d, 1. .1. 1. nu 1. U WH u., .1.. .1 v .1. 1.. v. ..1 I ....1.. Y) .1. .1 T 1.. .1 1.. -H11 H 1. 11. aan.. l. 1.. .1.. .1..1 1. -...1.. ..1 ..1 ....n 1...] .1( 1 ...n.2 .|1. O N .H ...1.1M T 1. .L .n .h l( 1.), .l ..1 1. .1.1.1.1 11. 1. V11.. f. x.. .w1 1 1.. 1... .1. .1 l l .1, l 1 11 l .1 ...1. .1. .1. f. 2 JL .l I( 1. S11 l nv ,11... .1\ .1.. 1.. u... .l ,11. 1.1 1. ..1 1 l 1 .1.. 1 .1. .l 1. 1. 1|. 1. ..1 ...11.1. .11- l 1 .1. .f 1 R .1 0 r 1 1.1..-..n112 .w1 M100 1.. .1-.1 n.. H w. 9 1.1 1... .1 1... .1A 1 ..1 L C ..1 n1. .1 .z .3.. H. 11 ...1... N. DUI.. .S .1. .uw 1. ,1. .1 U ..1 r ....1. -..L .1.1.1 1....... V H ....1 i 1.. .1. l 1. .1.. Ll l. .ll ....Ilwn .1 .v .11H Q ...11.11.114V11Y... ..11 ...1. 1.1... ....1 u... H11.-. .1 n. n.. C.-. .1 n. u.. .1 .,1- 1. 1. 1. 4 2 .1. .......l .1 l. l. .1. 1 1. ...1 1 11 1.1 1 1. 11... C .1 .1.1.1 .U1 1... ..-.1 .1 vl( nd J\l nu Ll 1|.. :T1 1L K Il .1.1. ..|1| 111.11 Wl .1.. D.. 1. n.. l 1 .1.. ..1 .1 .i .1 U v.. 1 1. 141.1., 1.., 1. 1 .h .1. .T1 .1. Y@ 11... ..1 f .11 q1.... L... U 1h .w 1 .k .11 ..1 V. 1. 1 .1. .7 X. N. n. HU I) 1x l\ vf i. 1 11 nl 1. 1. 1, 1. D. 1 u .1 nu x., 1.1). .L 1. 1 U11 .u u... .11. l.. .11H y. .1 .1A i 1 N n.. L d. 1.. .H .1.. 1.. .1, .11. .l 1. .1 1.1. .l

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